Hair Loss Glossary

Hair Loss Glossary

Glossary Terms

Below we have actually compiled a list of terms that are utilized when referencing anything to do with hair loss/hair transplant fully (V in this situation). Feel free to use them as recommendations. (If you have an idea that you believe would serve, please contact us so we can review and include it.).



Alopecia: [Gk, alopex, fox (manage)], partial or complete absence of hair arising from numerous disorders or problems.

Alopecia Androgenetica: [Gk, alopex, fox (manage) + Gk, andros + genein, to produce], the clinical name for male or female pattern baldness.

Alopecia Areata: [Gk, alopex, fox (mange) + L, area, open space], hair loss in dramatically defined spots.

5 alpha-reductase: the enzyme needed to transform testosterone to dihydrotestosterone (DHT). Kind 1 5-alpha reductase is discovered mainly in the skin and also type 2 5-alpha reductase is discovered primarily in the prostate.

Anagen: [Gk, ana, up, once again + genein, to create], the growing phase of hair, which shows terrific variant, varying from 2 to six or more years.

Androgen: [Gk, andros + genein, to generate], any type of steroid hormonal agent that boosts male qualities.

Apoptosis: [Gk, apo, separation + ptosis, falling], set cell death.

Azelaic Acid: a naturally taking place saturated dicarboxylic acid with the chemical name of 1,7-heptanedicarboxylic acid as well as a molecular weight of 188.22. Azelaic acid is a dietary part of whole grain cereals and animal items. Azelaic acid (0.1 to 3.0 mmol/l) has actually been revealed to create an affordable concentration dependent restraint of 5-alpha reductase task in human skin and is made use of topically to prevent the synthesis of DHT in the scalp.



Biopsy: [Gk, bios, life + opsis, sight], the elimination of a little item of living cells from an organ or various other part of the body for microscopic evaluation.



Catagen: [Gk, kata, down, under + genein, to produce], the short transition stage of the hair growth cycle, lasting two to three weeks.

Clone: [Gk, klon, a plant cutting], a group of genetically identical cells or organisms stemmed from a single typical cell.

Crown: [L, corona, a surrounding structure], the top part of a body organ or framework, such as the top of the head.

Cuticle: The external surface of hair, made up of overlapping scales made of anemic keratin healthy protein. It offers hair gloss and shine as well as likewise gives a few of its strength.



Dermal Papilla: The dermal papilla is situated at the base of the hair roots. The dermal papilla contains nerves and blood vessels, which supply glucose for power and also amino acids to make keratin. This structure is exceptionally important in the law of hair growth given that it has receptors for both androgens and also hair-promoting representatives.

Dermatology: [Gk, derma, skin + logos, science], the study of the skin, including the composition, physiology, and also pathology of the skin and the diagnosis as well as treatment of skin disorders.

Dermis: [Gk, derma, skin], the layer of the skin, just listed below the epidermis, consisting of papillary as well as knotty layers and consisting of blood as well as lymphatic vessels, nerves and nerve endings, glands and also hair roots.

DHT: phrase for dihydrotestosterone. Classified as a ‘sex hormone’, there is no well marked connection to the degrees of DHT and also sex drive or sex. Apart from advertising hair development on the face and also top pubis (but having just the contrary impact on the scalp), the duty of DHT in the adult human man is an enigma.

Donor Area: Area of the scalp (typically along the sides) where hair is extracted from to be hair transplanted to the hairless location.

Dutasteride: a medication presently under advancement by GlaxoSmithKline, which is a double inhibitor of the 5-alpha reductase enzymes responsible for converting testosterone to DHT.



Effluvium: [L, effluvium, a flowing out], a discharge, which might concern sudden, serious hair losing.

Skin: [Gk, epi, on or upon + derma, skin], the shallow, avascular, layers of the skin, composed of an external, dead cornified part and a much deeper, living, cellular part. Entirely, these layers are in between 0.5 to 1.1 mm.

Etiology: [Gk, aitia, cause + logo designs, scientific research], the source of a condition.



Finasteride: the common name for Propecia as well as Proscar, which are drugs that bind with the kind 2 5-alpha reductase enzyme and also minimize the amount of DHT in the prostate and lotion.

Hair follicle: [L, folliculus, little bag], a pouch like clinical depression, such as the hair roots within the dermis that enclose the hair roots.

Frontal Hairline: [L, frons, forehead], the separation of vellus to incurable or intermediate hair in as well as adjacent to the midline of the anterior part of the head.



Generic: [L, genus, kind], of or concerning a compound, product, or medicine that is not secured by hallmark; the same in chemical make-up however not always equivalent in therapeutic result.

Glycerin or Glycerine: [Gk, glykeros, pleasant], a sweet, anemic, oily liquid that is a pharmacologic quality of glycerol. Glycerin is utilized as a moistening agent for chapped skin, as a component of suppositories for constipation and also as a sweetening agent as well as car for drug prep work.



Hamilton-Norwood: a graphic scale standing for the level of hair loss/ economic crisis of alopecia androgenetica in males.

Hirsutism: [L, hirsutus, hairy], excessive body or face hair as a result of genetics, hormone disorder, porphyria or medicine. Additionally called hypertrichosis.

Hormonal agent: [Gk, hormaein, to set in motion], a complex chemical substance created in one part or body organ of the body that initiates or controls the activity of a body organ or a team of cells in one more part of the body.

Hypertrichosis: excessive hair development over the regular for the age, sex and race of an individual, in comparison to hirsutism, which is excess hair growth in ladies adhering to a male distribution pattern. Hypertrichosis can develop throughout the body or can be separated to tiny patches.

Hypothyroidism: (underactive thyroid gland) is the term used to define a condition in which there is a lowered degree of thyroid hormone (thyroxine) in the body. This can trigger numerous signs and symptoms, consisting of: exhaustion, weight gain, irregularity, aches, dry skin, lifeless hair/hair loss as well as sensation cold.



Idiopathic: [Gk, idios, private, distinct, peculiar + pathos, condition], without a recognized reason.

Infundibulum: is the mug or funnel in which a hair follicle expands, also The superior, or highest possible section, of the hair roots.

Intermediate Hair: intermediate scalp hairs are about 1 cm in length. They lack the texture of terminal hair, but have far more thickness and body than vellus hair.

In Vitro: [L, in, within + vitreous, glassware], of a biologic response taking place in lab device.

In Vivo: [L, in, within + vivo, active], of a biologic response occurring in a living organism.

Isthmus: is the shortened section of the hair follicle, prolonging from the add-on of the erector pili muscular tissue (lump area) right into the entrance of the sweat gland air duct.



Keratin: [Gk, keras, horn], a fibrous, sulfur-containing protein that is the key part of the skin, hair, nails as well as enamel of the teeth.

Ketoconazole: an antifungal medication that inhibits biosynthesis of ergosterols or other sterols.



Ludwig Staging: a graphic representation of the intensity of alopecia androgenetica in ladies, originally released in 1977 in the British Journal of Dermatology.

Lunago: [L, down], the soft, fine hair that covers much of the foetus beginning in the 5th month as well as is typically dropped prior to birth.



Micrograft: [Gk, micros, small] methods grafts with 1 or 2 hairs, minigrafts are those with 3 or 4 hairs, and also a megasession is a procedure in which greater than 1000 micrografts as well as minigrafts are inserted in a single session.

Midline: Area in the direction of the middle of the scalp.

Miniaturisation: The devastating process through which dihydrotestosterone (DHT) reduces hair follicles; an essential pen of androgenetic alopecia.

Minoxidil: a piperidinopyrimidine derivative vasodilator that has hair development energizer homes, perhaps including direct excitement of hair roots epithelial development. The very first FDA medication approved for the treatment of MPB.



Occiput: [L, occiput, atlas], the back part of the head.

Oestrogen: [Gk, oistros, gadfly + genein, to produce], one of a group of hormone steroid compounds that promote the growth of female second sex qualities.



Papilla: The tiny root location at the base of hair, which receives the nutrients needed for hair development.

Pharmacodynamics: [Gk, pharmakon, medication + dynamis, power], the research study of how a medicine acts upon a living organism.

Back Scalp: The location at the back of the head.

Pilosebaceous Unit: [L, pilus, hair + sebum, fat], of or referring to a hair roots as well as its oil gland.

Exclusive: [L, proprietas, a residential or commercial property], of or relating to an item, such as a medication or gadget, that is created earnings.

Propylene Glycol: a colourless thick fluid used as a solvent in the preparation of certain medicines. It additionally prevents the development of fungis and bacteria.



Receptor Website: [L, recipere, to get +situs, area], an area on a cell surface where certain particles, such as enzymes, natural chemicals, or viruses, attach to connect with mobile parts.

Economic downturn: [L, recedere, to pull away], a regression.

Recipient Website: The hairless area where the extracted hairs (normally from the contributor location) are transplanted to.

Retin-A: the proprietary name for a prep work of retinoic acid, made use of in the therapy of acne and also sun damage to the skin.

Retinoic Acid (also tretinoin, isotretinoin or all-trans-retinoic acid): the cis-trans type of vitamin A. Retinoids act as a light chemical peel on the skin and also are really essential to all epithelial frameworks.



Scleroderma: [Gk, skliro, hard, derma, skin], a persistent hardening as well as contraction of the skin as well as connective cells, either in your area or throughout the body. It can trigger hair loss over the affected locations.

Sebaceous: [L, sebum, sweat], fatty, oily or greasy, generally referring to the oil-secreting glands of the skin or to their secretions.

Sebum: [L, grease], the oily secretion of the sebaceous glands of the skin, composed of keratin, fat and also cellular debris.

Steroid: [Gk, stereos, solid + eidos, type], any one of a large number of hormone substances with a similar standard chemical structure, created generally in the adrenal cortex as well as gonads.

Superoxide Dismutase (TURF): chemicals that catalyses the damage of oxygen complimentary radicals. It secures oxygen metabolising cells against the unsafe impacts of superoxide free radicals.

Suture: Stich.



Telogen: [Gk, telos, end + genein, to generate], the resting stage of the hair growth cycle long-term roughly 100 days.

Temples or Temporal Areas: [L, tempus, temple], the lateral-frontal regions of the head.

Terminal Hair: [L, terminus, limit] of or pertaining to the thicker hair on the scalp that are medullated and also have a growth phase of many years.

Testosterone: a naturally occurring androgenic hormonal agent.

Concept of Benefactor Prominence: Scientific basis for hair transplantation mentioning that hair’s hereditary code stays within the hair follicle and also not in the recipient website into which it is transplanted.

Trichotillomania: [Gk, trikhos, hair, tillein, pull out (hair)] a compulsive wish to pull out one’s hair.



Vellus: the soft, great hair covering all parts of the body other than hands, soles and also locations where various other kinds of hair are normally discovered. True vellus hairs have no erector pili muscle, yet have large sweat glands. Vellus scalp hairs accomplish lengths less than 1 centimeters.

Vertex: [L, vertex, summit], the top of the head towards the posterior part, including the area or locations at which the hair grows in a spiral pattern.

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